RTLAMR: An RTL-SDR Receiver for 900MHz ISM Smart Meters

Smart meters are meters that monitor electricity usage and wirelessly transmit consumption data to the electricity company. They are a part of the “smart grid”, and allow for better electricity control and usage reporting.

Douglas recently wrote in to us to let us know about his work on RTLAMR, an RTL-SDR based Automatic Meter Reader (AMR) decoder. Currently Douglas has tested the decoder on his local Itron C1SR smart meters, but notes that it should work on any meter using the common AMR protocol known as Electronic Receiver Transmitter (ERT).

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What is RTL-SDR

The RTL-SDR is an ultra cheap software defined radio based on DVB-T TV tuners with RTL2832U chips. The RTL-SDR can be used as a wide band radio scanner. It may interest ham radio enthusiasts, hardware hackers, tinkerers and anyone interested in RF.